CN218914121U - Pressure relief device for quick-change connector - Google Patents
Pressure relief device for quick-change connector Download PDFInfo
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- CN218914121U CN218914121U CN202223476234.2U CN202223476234U CN218914121U CN 218914121 U CN218914121 U CN 218914121U CN 202223476234 U CN202223476234 U CN 202223476234U CN 218914121 U CN218914121 U CN 218914121U
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- pressure relief
- quick
- claw
- guide stud
- relief device
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Abstract
The utility model discloses a pressure relief device for a quick-change connector, which comprises a connector fixing part, a locking part and a pressure relief part, wherein the connector fixing part comprises a guide stud and a claw; the locking component is a claw fixing nut; the pressure relief component is an adjusting screw; the lower part of the guide stud is provided with an annular groove extending to the bottom, a plurality of claws are uniformly distributed on the annular side surface of the annular groove, the middle of the guide stud is provided with a threaded hole matched with the adjusting screw, and the periphery of the upper part of the guide stud is provided with external threads matched with the claw fixing nuts. According to the utility model, by designing the pressure relief device, residual pressure in an oil way connected with the quick-change connector after the oil pipe is disassembled can be removed, so that the phenomenon of blockage does not occur when the oil way is installed next time, the failure rate of blockage of the oil way in a test can be reduced, and the test efficiency is improved; the pressure relief device can be suitable for the use of quick-change connectors with different pipe diameters, and can realize the pressure relief work of the quick-change connectors; the service life of the quick-change connector is prolonged.
Description
Technical Field
The utility model belongs to the technical field of static force/fatigue test of structural strength, relates to hydraulic circuit fault elimination in a test hydraulic system, and particularly relates to a pressure relief device for a quick-change connector.
Background
In the static force/fatigue test of the structural strength of the aircraft, the hydraulic loading control equipment and the hydraulic system are combined to control the power output equipment (namely the hydraulic actuator cylinder), and then the lever connecting system is used for accurately loading the test piece, so that the structural strength of the test piece is checked. The hydraulic system consists of a pump station, a control substation, hydraulic actuating cylinders, oil pipes and other equipment, a power source output by the pump station outputs power to the hydraulic actuating cylinders through the control substation, whether an oil way is unobstructed or not directly influences the power output, and the fault frequent point of the blockage of the oil way always influences the test progress.
The pipeline joint of the hydraulic actuating cylinder and the control substation is a commonly used quick-change joint and consists of a male joint and a female joint, so that the hydraulic actuating cylinder is simple and convenient to use and high in installation efficiency, but oil ways are blocked frequently due to residual pressure in the oil pipes when the oil pipes are detached, and a stop device of the male joint cannot be completely propped open by the female joint when the hydraulic actuating cylinder is installed next time, and the hydraulic actuating cylinder is connected in a virtual connection mode to cause the unsmooth oil ways. The method for discharging the oil pipe comprises the steps of separating the joint, wrapping a layer of cloth on the male joint, knocking a stop device at the end part by using a hammer to enable high-pressure oil in the oil pipe to seep out for achieving the purpose of pressure relief.
The device is designed for removing residual pressure in the pipe after the quick-change connector is disassembled, so that the residual pressure in the pipe is safely and effectively removed, the virtual connection is avoided in the next use and installation, and the failure rate of pipeline blockage is reduced.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a pressure relief device for a quick-change connector.
The technical scheme of the utility model is as follows:
the pressure relief device for the quick-change connector comprises a connector fixing part, a locking part and a pressure relief part, wherein the connector fixing part comprises a guide stud and a claw; the locking component is a claw fixing nut; the pressure relief component is an adjusting screw;
the lower part of the guide stud is provided with an annular groove extending to the bottom, a plurality of claws are uniformly distributed on the annular side face of the annular groove, screw holes matched with the adjusting screws are formed in the middle of the guide stud, and external threads matched with the claw fixing nuts are formed in the periphery of the upper part of the guide stud.
Further, the guide stud is of a cylindrical structure with an open lower end, and the threaded hole is formed in the middle of the upper surface of the guide stud.
Further, the annular side face of the annular groove is provided with double lugs corresponding to the number of the clamping jaws, and the upper ends of the clamping jaws are respectively installed in the corresponding double lugs through pin rotation.
Further, the jack catch includes arm, jack catch main part and trip portion, the one end of jack catch main part has the arm of taking the through-hole, and the other end of jack catch main part is bent and is formed with the trip portion, and the arm passes through the pin rotation and installs in the double lug piece.
Further, the number of the claws is 3.
The utility model has the beneficial effects that:
1. through designing the pressure relief device, the residual pressure in the oil circuit connected with the oil pipe and the quick-change connector can be removed after the oil circuit is disassembled, so that the blocking phenomenon is avoided when the oil circuit is installed next time, the blocking failure rate of the oil circuit in a test can be reduced, and the test efficiency is improved;
2. the pressure relief device is provided with a plurality of movable clamping claws, so that the pressure relief device can be suitable for quick-change connectors with different pipe diameters, and pressure relief work of the quick-change connectors is realized;
3. the locking component and the pressure relief component are designed in the pressure relief device, so that the pressure relief work can be simply, conveniently and flexibly realized, the pressure relief device is safer than the knocking method used in the past, and the service life of the quick-change connector is prolonged.
Drawings
FIG. 1 is a schematic view of a preferred embodiment of the present utility model;
FIG. 2 is an exploded view of a preferred embodiment of the present utility model;
FIG. 3 is a schematic view of a guide stud according to the preferred embodiment of the present utility model;
FIG. 4 is a cross-sectional view of a guide stud in a preferred embodiment of the utility model;
in the figure: the device comprises an adjusting screw 1, a claw fixing nut 2, a guide stud 3, a pin 4, a claw 5, a quick-change joint 6, an oil pipe 7, a threaded hole 31, an external thread 32, an arm 51, a claw main body 52 and a clamping hook 53.
Detailed Description
In the static force/fatigue test of the structural strength of the aircraft, the frequently used equipment comprises an oil path connecting device consisting of an oil pipe 7 and a quick-change connector 6, and the fault that the oil path is blocked exists in the test process, wherein part of the reasons are that residual pressure exists in the oil path connecting device when the oil path connecting device is detached, and a female connector matched with the quick-change connector 6 cannot completely jack up a hydraulic stop device of the quick-change connector 6 in the next installation, so that the oil path is connected in a virtual way, and the oil path is not smooth.
Example 1: a pressure relief device for a quick-change connector as shown in fig. 1-4, which mainly comprises a connector fixing part, a locking part and a pressure relief part: wherein: the joint fixing part is composed of a guide stud 3,The pin 4 and the three claws 5 are formed, the bottom of the guide stud 3 is provided with a double lug 33 of the 3 fixed claws 5, pin holes are arranged in the double lug 33, the top is provided with a threaded hole 31 corresponding to the adjusting screw 1, and the parameters of the threaded hole 31 are M 1 An external thread 32 is arranged outside, and the parameter of the external thread 32 is M 2 The method comprises the steps of carrying out a first treatment on the surface of the The claws 5 comprise arm parts 51, claw main bodies 52 and clamping hook parts 53, the arm parts 51 of each claw 5 are respectively fixed in the double lug sheets 33 of the annular groove at the lower part of the guide stud 3 through the pins 4, the claws 5 can rotate around the pins 4 back and forth, the quick-change connector 6 is clamped through the three claws 5, and the quick-change connector can be suitable for fixing quick-change connectors with different pipe diameters.
The locking part comprises a claw fixing nut 2, an internal thread is designed in the middle of the claw fixing nut 2, the parameters of the internal thread are the same as those of the external thread 32, when the claw 5 is tightly held by the quick-change connector 6, the claw fixing nut 2 is rotated along the guide stud 3 to be in contact with the arm parts 51 of the claw 5, and a pretightening force is applied, at the moment, the arm parts 51 of the claws 5 are limited to rotate outwards by the inner wall of the claw fixing nut 2, and the claw 5 cannot rotate freely around the pin 4, so that the claw 5 is locked by the quick-change connector 6.
The pressure release part comprises an adjusting screw 1, external threads are designed on the screw 1, parameters of the external threads are identical with those of the threaded holes 31, and when the joint fixing part is connected with the quick-change joint 6, the adjusting screw 1 is screwed to move in the guide stud 3 until the hydraulic stop device of the quick-change joint 6 is jacked up, so that residual pressure in the oil pipe 7 is removed.
After the oil way connecting device is disassembled, the claw fixing nut 2 of the pressure relief device with the pipe diameter being adjusted is moved to the upper half part of the guide stud 3, so that the claw 5 can freely move, and the device can be taken down; the claw 5 is connected with the quick-change connector 6 to tightly hold the rotary claw fixing nut 2 to enable the claw fixing nut to be in contact with the claw 5 and apply pretightening force, so that the locking function is achieved, the adjusting screw 1 is rotated to enable the adjusting screw to jack up the hydraulic stop device of the quick-change connector 6, and the purpose of pressure relief is achieved.
While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the claim concerned.
Claims (5)
1. The pressure relief device for the quick-change connector is characterized by comprising a connector fixing part, a locking part and a pressure relief part, wherein the connector fixing part comprises a guide stud (3) and a claw (5); the locking part is a claw fixing nut (2); the pressure release component is an adjusting screw (1);
the lower part of the guide stud (3) is provided with an annular groove extending to the bottom, a plurality of claws (5) are uniformly distributed on the annular side face of the annular groove, threaded holes (31) matched with the adjusting screw (1) are formed in the middle of the guide stud (3), and external threads (32) matched with the claw fixing nuts (2) are formed in the periphery of the upper part of the guide stud (3).
2. The pressure relief device for the quick-change connector according to claim 1, wherein the guide stud (3) has a cylindrical structure with an open lower end, and the threaded hole (31) is formed in the middle of the upper surface of the guide stud (3).
3. A pressure relief device for a quick change coupling according to claim 1, characterized in that the annular side of the annular groove is provided with a corresponding number of lugs (33) of the jaws (5), the upper ends of the jaws (5) being rotatably mounted in the corresponding lugs (33) by means of pins (4), respectively.
4. A pressure relief device for a quick change coupling according to claim 3, characterized in that the claw (5) comprises an arm (51), a claw body (52) and a hook (53), one end of the claw body (52) is provided with the arm (51) with a through hole, the other end of the claw body (52) is bent to form the hook (53), and the arm (51) is rotatably mounted in the double lug (33) through the pin (4).
5. Pressure relief device for quick-change couplings according to claim 1, characterized in that the number of the jaws (5) is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223476234.2U CN218914121U (en) | 2022-12-26 | 2022-12-26 | Pressure relief device for quick-change connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223476234.2U CN218914121U (en) | 2022-12-26 | 2022-12-26 | Pressure relief device for quick-change connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218914121U true CN218914121U (en) | 2023-04-25 |
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ID=86047147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223476234.2U Active CN218914121U (en) | 2022-12-26 | 2022-12-26 | Pressure relief device for quick-change connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218914121U (en) |
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2022
- 2022-12-26 CN CN202223476234.2U patent/CN218914121U/en active Active
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